Recruiting

Trampoline Jumping

Sponsor:

University of Ottawa

Code:

NCT07183800

Conditions

Urinary Continence

Urinary Incontinence

Urinary Incontinence (UI)

Urinary Incontinence , Stress

Eligibility Criteria

Sex: Female

Age: 18 - 40

Healthy Volunteers: Accepted

Interventions

Water

Study Details

Brief summary:

The goal of this clinical trial is to evaluate whether a short bout of high-intensity trampoline jumping induces urinary leakage or measurable changes in pelvic floor morphology in active females aged 18-40 who do not report symptoms of urinary incontinence. The main questions it aims to answer are:

Hypothesis 1: Does a single 10-minute trampoline protocol result in acute changes in pelvic floor structure, including bladder neck position, levator plate length, and/or posterior urethrovesical angle (PUVA)?

Hypothesis 2: Do participants report any urinary leakage during the jumping protocol, despite being asymptomatic at baseline?

Hypothesis 3: Do pelvic morphology changes recover within 30 minutes post-jumping, or do alterations persist?

Researchers will perform within-subject comparisons at multiple time points (pre-jump, immediately post-jump, and 30 minutes post-jump) using transperineal ultrasound imaging to assess structural changes.

Participants will:

  • Attend one laboratory visit
  • Complete baseline pelvic health questionnaires (ICIQ-UI Short Form and PFD Sentinel).
  • Undergo 2D transperineal ultrasound imaging in the standing position at rest, immediately post-jumping, and 30 minutes post-jumping.
  • Perform a 10-minute high-intensity jumping protocol on a mini-trampoline, while heart rate and perceived exertion are monitored.
  • Verbally report any urine leakage during jumping using standardized descriptors.

Conditions

Urinary Continence

Urinary Incontinence

Urinary Incontinence (UI)

Urinary Incontinence , Stress

Study ID

NCT07183800

Start date

Jul 16, 2025

Status verified date

Jul, 2025

Completion date

Apr 30, 2026

Anticipated

Primary completion date

Dec 31, 2025

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: Female

Age: 18 - 40

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Aged 18-40
  • Engage in regular physical activity or sport
  • Do not experience frequent urinary leakage (no more than once per month during exercise, coughing, or sneezing)
  • Can complete a 10-minute jumping protocol

Exclusion Criteria:

  • Currently pregnant or have been pregnant in the past 6 months
  • Have cardiac, pulmonary, metabolic, and/or neurological conditions
  • Have a lower body injury that limits your ability to jump
  • Have had a hysterectomy and/or incontinence surgery

Study Design

Enrollment

30 participants

Anticipated

Interventions and Outcome Measures

Arms

healthy young active females

18-40yo active females with no self-reported urinary incontinence

Interventions

Water

Participants will undergo a standardized 10-minute high-intensity trampoline jumping protocol designed to elicit mechanical loading on the pelvic floor. Prior to the jumping session, bladder volume will be assessed via transabdominal ultrasound. If a participant's bladder contains less than 100 mL of urine, they will be asked to drink water and wait until a target range of 100-200 mL is reached to ensure consistent pre-jump bladder filling across participants. This approach minimizes variability in bladder volume, which could influence pelvic floor measurements.

Primary outcome measure

  • Assessing whether a short-duration trampoline protocol induces urinary leakage in active females. [ Time Frame: Urinary leakage is assessed during the 10-minute jumping protocol on the single lab visit. ]

Central Contacts and Locations

Locations

University of Ottawa - Lees Campus

Recruiting

Ottawa, Ontario, Canada, K1S 5S9

Contacts

Sabine Vesting, PhD

613-562-5800svesting@uottawa.ca

Grace Collins, BSc

613-562-5800gcollins@uottawa.ca

Principal Investigator:

Linda McLean, PhD

More Information

Sponsor

University of Ottawa

Last update posted

Oct 3, 2025

Last verified

Jul, 2025

Keywords

  • stress urinary incontinence
  • pelvic floor
  • pelvic floor morphology
  • high impact exercise
  • urine leakage
  • urinary symptoms
  • levator plate
  • female athletes
  • bladder neck
  • posterior urethro-vesical angle
  • PUVA
  • jump
  • trampoline
  • high impact
  • high intensity
  • healthy female
  • incontinence
  • leakage
  • urinary leakage

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of Ottawa on 2025-10-03.